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发明名称
Electric clock
摘要
申请公布号
US2089280(A)
申请公布日期
1937.08.10
申请号
US19320589788
申请日期
1932.01.30
申请人
FRITZ LOEFFLER
发明人
LOEFFLER FRITZ
分类号
G04C1/06
主分类号
G04C1/06
代理机构
代理人
主权项
地址
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